I'm new to linux. I've a brand new system 76 laptop. It came with ubuntu pre-installed. But my son got to my new computer first and modified the linux system so that ubuntu seems to be missing, or a least somewhere where I can't find it. I see things like LXD ?, and Kubuntu. But I dont see ubuntu. Is there a way to use ubuntu? My son won't help me and my history is with windows xp, so I'm lost. Can anyone help me?